Negima! Magister Negi Magi Volume 12 (New Edition) was released in Japan on May 9, 2017 by Kodansha for ¥880. This is the 12th volume of a series of re-releases of 19 books in total about the challenges of Negi, a child wizard who is tasked with teaching a class of junior-high girls all while searching for clues to lead to his missing father. It was written by author, Ken Akamatsu.
In 2016, Negima's original manga began to hit stores once more as a series of unique re-releases to commemorate the sequel series, UQ Holder!, which head been green-lit for an anime series. The new releases would be released in an omnibus-form and would contain two volumes of the manga instead of releasing all 38, dividing the total number of books in half. In addition, these releases featured new art of select characters in the artist's modern style on the cover and each was splashed with sparkly star effects.
赤松 健最新作「UQ HOLDER!」アニメ化を記念して「ネギま!」新装版登場! 新書サイズからB6判にサイズアップしてワイドに読めるように! 新装版12巻は「闇の魔法修業編」収録。打倒、フェイトを誓うネギ。光の魔法と闇の魔法、どちらの修業をするのか悩むが、父の高みを目指すため、あえて「闇」を選択。そして人造霊エヴァンジェリンとの過酷な修業が始まった!
-- Kodansha